Steelhead Energy Storage (ERCOT-27INR0145) — Project Summary

Queue ID
ERCOT-27INR0145
Capacity
192.1 MW
Technology
Battery
Status
active
Location
Fannin, TX
Region
ERCOT
Developer
GRS BESS TEXAS SEVEN, LLC
IA Status
Facility Study

Steelhead Energy Storage

ERCOT-27INR0145BetaActiveBatteryERCOTLBNL + Live

192.1 MW storage in Fannin, TX · In queue since February 2024 · Proposed COD September 2027

BA: ERCOISO/RTO: ERCOTNERC: TRERC: ERCOT

192.1 MW

Capacity

1

Components

Battery

2y 5m

In Queue

Facility Study

IA Phase

COD target: 2027

Interconnection

Total Duration

3y 7m

Facilities Study50%
Queue EntryFeb 7, 2024

Interconnection request submitted to ISO/RTO

Interconnection StudyCurrent

ERCOT uses a serial "connect and manage" approach — fastest among major ISOs.

Typical: 18–30 months (fastest major ISO)

Interconnection Agreement

Interconnection agreement not yet executed

Typical: 30–60 days (negotiation)

Commercial Operation

Proposed COD: 2027-09-30

Cross-source intelligence
Beta
Low confidence·0 sources·as of 2026-06-01
Expected COD
2027-09-30
From queue filing
Developer
GRS BESS TEXAS SEVEN, LLC
From queue filing
Status
Active
Active — Facility Study phase in ERCOT queue, no public construction or financing announcements
Financing
Unannounced
Key milestones
IA executedFeb 7, 2024Most recent

Entered ERCOT interconnection queue

About

Steelhead Energy Storage is a proposed 192.1 MW battery storage project located in Fannin County, Texas. The developer is GRS BESS TEXAS SEVEN, LLC. This project is listed in the ERCOT interconnection queue as entry ERCOT-27INR0145, with a queue entry date of February 7, 2024, and a proposed commercial operation date of September 30, 2027. Its interconnection status is currently in the Facility Study phase.

The proposed project is linked to the existing Steelhead Energy Storage operating plant (EIA ID 67798). Recent news coverage indicates development activity.

Generated from interconnection queue and public data sources

Development Risk

Realization risk before commercial operation — cluster-study clearance, IA timing, counterparty mix, and withdrawal probability vs cohort. The diligence view that determines whether this project is worth pursuing. Powered by InfraSure's development-stage modeling stack.

Available on the InfraSure platform

See the full development-risk decomposition for this project.

P(COD by stated date)
Withdrawal probability vs cohort
IA cluster risk
Project Details

State

TX

County

Fannin

Grid Region

ERCOT (Texas)

Market

ISO/RTO Member

Developer

GRS BESS TEXAS SEVEN, LLC

Utility

Entity

ERCOT

Service Type

Point of Interconnection

Tap 1593 BONHAM_P8 to Allens Creek 1835 138kV

Data Source

LBNL + Live

Risk Analytics

Composite operating-phase risk view — what this asset's risk profile would look like once it reaches commercial operation. Climate hazards across its operating life, expected generation variability, and offtake counterparty exposure, decomposed into a single decision-grade score. Powered by InfraRisk.

Available on the InfraSure platform

See the full risk decomposition + scenarios for this project.

Climate hazards (8+)
Generation variability (P10/P50/P90)
Offtake + transmission counterparty
Generation Forecast

Forward generation outlook — what this project would produce assuming it reaches commercial operation. Probabilistic ranges (P10/P50/P90) across weather, demand, and policy scenarios, conditioned on the proposed COD. Powered by InfraSure's generation modeling stack.

Available on the InfraSure platform

See the full forecast + scenario decomposition for this project.

P50 conditioned on COD
Capacity factor vs cohort
Weather + policy scenarios
Financial Forecast

Forward revenue, DSCR projection, and financing-close risk — conditioned on commercial operation. The bankability view that determines whether the deal clears its covenants once online. Powered by InfraSure's asset cashflow stack.

Available on the InfraSure platform

See the full revenue + DSCR projection for this project.

Revenue conditioned on COD
Financing close risk
Cohort DSCR comparison
Market Context
Approximate
ISO / RTO
ERCOT
Trading Hub
HB_NORTH
Hub Confidence
HIGH

This project's market context is estimated from its Point of Interconnection. Hub and node assignments are approximate and based on geographic inference from the POI substation name.

No insights available for this project.

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InfraSure platform

Forward forecasts, scenario decomposition, and risk-decision tooling for this queue project.